Polymer concrete overlay on SH 51 bridge deck (80-03-1)
Abstract
This report discusses OKLAHOMA's first polymer concrete bridge deck
overlay. The objective of this project was to place a thin resinous
overlay on a sound bridge deck and evaluate its performance over one
year using various physical tests. The evaluation will show how well
the overlay protects the reinforcing steel from corrosion due to deicing
salts.
The steps leading to the construction of the overlay are detailed as
well as the actual placing of the overlay. The results of various
physical tests are reported for both before and after the overlay.
The protection of a bridge deck with a polymer concrete overlay appears
to be a rather complicated procedure. Besides constraints of weather,
temperature, aggregate and resin availability, machinery needs to be
developed that can accurately and efficiently mix and lay polymer
concrete.